Air quality in Ina, Japan today
Mr. Duck’s Air Quality Score
Good air today for Ina, Japan
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Ina today is classified as Good. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 2.0 µg/m³, based on five valid observations recorded by OpenAQ.
Overall conditions meet the criteria for a Good rating, with no additional pollutants reported. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The data for Ina includes measurements of five pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All observations come from a single monitoring location identified as 伊那市荒井３４９７, giving a total of five rows of data for the city. Each pollutant has a most‑recent timestamp of 2026-02-10 22:00 UTC, which falls within the “updated within three days” freshness window, so the dataset reflects very recent conditions.
Across the five rows the recorded values are extremely narrow. NO is consistently reported as 0.0 ppm, while both NO₂ and NOX show a single value of 0.003 ppm. SO₂ mirrors NO with a constant reading of 0.0 ppm. The only pollutant that registers a non‑zero concentration is PM2.5, measured at exactly 2.0 µg/m³ for every entry. Because each metric’s minimum, median and maximum are identical, there is no observed variability in the reported period; the data set essentially provides a single snapshot rather than a range of values.
The coverage is limited to one sensor site, so spatial variation within Ina cannot be captured by this collection. Although the timestamps are fresh, the lack of multiple stations means that conditions elsewhere in the city may differ from what is recorded at 伊那市荒井３４９７. Users should keep in mind that these figures represent a very specific point in time and place, and broader air‑quality patterns would require additional monitoring locations or more frequent sampling.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The data shown for Ina reflects five valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 22:00 UTC; it is therefore considered “Updated within 3 days.” This snapshot provides a brief overview of current conditions, but air quality can differ across neighborhoods and change throughout the day, so values may vary locally and over time.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 伊那市荒井３４９７ | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 伊那市荒井３４９７ | no2 | 0.003 | ppm | 2026-02-10 22:00 UTC |
| 伊那市荒井３４９７ | nox | 0.003 | ppm | 2026-02-10 22:00 UTC |
| 伊那市荒井３４９７ | pm25 | 2.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 伊那市荒井３４９７ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |